Elliott’s on Congress, anywhere you can find a Sonoran Dog, and before the game check out the west side of campus area. This would be N Park Ave and University Ave area. Food places everywhere and a brewery called Gentle Ben’s. From there you can catch a bike taxi that will take you to the stadium.
If beer is your thing, I suggest Pueblo Vida Brewing in downtown Tucson. This is the best brewery I have found in Tucson. I have tried about a dozen breweries there. Also, they serve beer at the stadium will on the west side of the stadium where the visitors sit.
If you fly out Sunday evening or later I suggest getting brunch at the Arizona Inn.